Multicouple multirevolution printing-machine.



' W. SCUTT, DECD. 1, a n; J. soon, anemona. HULTIUUPLH MULTIBEVLUTIONPRINTING MACHINE. I arruouml nun 11110.30. 1905.

Patqnted Nov. 8, 1910.,

2 SHEETS*BHEET 1.

W. SCOTT, DEGD.

I. D. J. SCOTT, EXBOUTOBB. MULTIGOUPLB MULTIBEYOLUTION PRINTING MACHINE.

1910. n sums-summa.,

Pltented Nov. 8,

APYLIUlHOl FILED DBU. 30, 1905.

. sheet'or sheets which havealre'ady been'properly printed bythe firstprinting couplel and ing couple, the impressionvwnber of -whichsequentially on the severa UNITED STATES rATEnT oEEIcE.

wsLri-:a soor'r, or PLA'I'NFIELD, 4NEW JEasEY; IsAEELLA scorer AND navrnJoan scor'r ExEoU'rons or samwaLrEa sco'rr,l DEoEAsED.

MULTICOUPLE MULTIBEVOLUTION PRINTING-MACHINE.

Specification of Letters Patent.

Patented Nov. 8,1910.

Appnuamn mea beamte; aoi'sos. semi No. 293,384.

To all whom it may concern: Be it known that I, WALTER Soo'rr, acitiz'en of the Unite-d States of America, and a resident. ofPlainfield, Union county, New Jersey, have invented ."'crtain newanduse'- fulhI-inprovements in Multicou leMultirevolutionPrinting-Machines,o f lvhich the following isl''specification`- Thepr'ehhiit''inventioii t ates generally to rinti mhines, and, "as'."moreparticuarly re er'ence to the arrangement and con*V struction of 4theparts of a'in lti.couple, multi-revolution machinefand v o trippingmechanism connected therewith.` l

In Soe of my rior ap lications, such as the on iled'ontie 17thayof-ovember, 1905, r. No. 287863,.a construction was disclosedembracinga oftl e sheet,"in combination with means for automatically andperiodically, at regiilar intervals, tri ping and untripping 'the11npressionA of t e vmembers composing the several couples,toge therwith means, .under lthe control of ythe operator, or of an automaticbers of all .the couplesin regular sequence, and whereby, when the saidactuating device is released, the machine will resume its nor; maloperation, andbe tripped and unti'ipped again iit'maticallyl' The abovearrangement, whereby the interru )ting means act ieouple's, is .defsirable, in order to avoid the spoiling of the 1n order that 1tmay beproperly acted 'upon bythe remaining printing couples.

The present invention 'embraces a printis provnled with grippers @ptedto hold the sheet' for more than one revolution, inA

ing and'untripping the impression at reguarV-i'ntervals' toprop'erlyprint the sheet, to-

gether with means for interruptingthe action of, the automaticmeansaforesaid,

whereby the members composin the print# normal .operation of thegrippers, who b'y the. sheet is held-"entire impression me' ber pluralitprinting coupies adapted to prlnt on t e same. side as long as themembers are maintained in their tripped position.

hen several couples are used, the invention,I will comprise acombination with the form and impression members of two adjacentprinting couples, of automatic means foi` tripping and untripping theimpression of the several 'couples at regular intervals, the saidimpression members havingu'g'ri pers,'together with means :for operatingt e rippers on the impression 'memherothe rst prlnting couple to releasethe sheet once to a number of revolutions, means for openin g the gripers o n the im ression member of the secon printing coup e 'once to anumber of revolutions to release the sheet, means for interrupting theaction of the automatic means acting simultaneously on the members ofvthe several couples to maintain .themin their.tripped position, 'and'means, acting simultaneously therewith, to interrupt the normal action'4of the grippers on the, impression member of the second couple, wherebythe sheet is held on the impression 4member ofthe second couple aslongas the impression is tripped.

' Other 'ob'ec'ts and featur'es of construction will appear as. thespecification proceeds.

The invention is embodied in a concrete and preferred construction inthe accom' anying drawings; it is, however, suscepti le 'of avide mo`ication, -without departing from ,the 4true s irit of the invention.

'.Imthe saidv raw'ings: Figure-1 is aside elevation of. so much of' aprinting machine asfis necessary to properly illustrate the invention,showingV the members 'adjacent to the impression member of the secondrintin'g-co'uple in the proper position todgliver the sheet-r4 Fig.A 2is-.an end-view'looking ,in the direction ofthe arrow 2 of Fi 1 witparts broken away.

memberof .the second printing coup *showing them in the position whichthey ccnpy when the said impression member is about, to receive asheet.. Fig. .4 is aview similar to Figs, but 'showin the effect of theinterrupting means ony e members adacent. lto the impression member lofthe second jp'rintin cou 'le. 'i y Simi ar"ciaracterof referenceindicate corresponding 'parts in the severl views;

indicates 'a framework of iiy suitable sel i lig. 3. is a detailviewofthe. members adjacent to the im ression parts comprising the machine. Inthis framework are mounted a lurality of print-V ing couples, preferablyof) a rotary nature, there being in the present instance two such'couples arranged substantially one above the other. It"wil-l beunderstood, however, that the present invention may be extended toinclude three or more printing couples, if desired. Each couple consistsof a form and impression member, and is adapted to make a number ofrevolutions to.each. impression. In the present instance the cylindersrevolve twice to each impression.

2 is the impression cylinder, and 3 the form cylinder of the rstprinting couple, While 4 is the impression cylinder andy-5 the formcylinder of the second printing couple, A transfer cylinder G isinterposed between the two impression cylinders, and a second transfercylinder 7 is located adjacent to the second impression cylinder. Thiscylinder 7 may be a collecting cylinder, if desired.

8 isV the feed board, adjacent to which are thegages 9, against whichthe sheets are fed, which are raised in a well'known manner when .thegrippers on the cylinder 2 seize the sheet. I

10 indicates inking mechanism Aoii' an suitable construction usedinconnection'wit each plate cylinder.

All of the cylinders are geared together,

being driven fromthe pinion 11, which latter also transmits its motionthrough theV intermediate gear 12 and pinion 13 to the 'gear 14 mountedon the camshaft 15. '1 -Theeylinder 2 is provided with grippersvl whichare arranged to tumble backward and forward nearly one-half .arevolution by means of the cross-head 17, provided' lwith a slot in -theusual manner, and mounted'on the gripper shaft 18.

19 and 20 indicate two rotating cams which are driven so as to rotateonce to a number of revolutions of the impression cylinder'by means ofthe pinion21 and the gear'22.,

Mounted on the stud 23 .inithe framework,

is an arm 2,4 havinga friction roll`-which is held in constantengagement with vthe cam 19 by means of the spring'25; {.This stud 23carries a second arm -having a rpin 2 6 which i projects at thebeginning'of every `other revolution in the plane-'of the'crss-head 17ofthe gripper-.shaftso as to-c'lose thesaid grippers and seize thesheet.

Pivoted .in the framework and adjacent to theunderside ofthe-cylinder 2is a lever vor Leo arm 27 adapted to rock'a round `the center 28 as1 apivot,- andtprovided at vitscuterend with the frictionV roll 29 whichis'. designed "to move into the plane of the cross-head '-17 once toevery two 'revolutions' in alternation with the movements of the pin 26.This l e tion roll 55 whi li engages with the said caii'i 130 ver 27 isoperated "from the cam. 2.0 'means l closed twice during the samerevolution by means of the two rocking cams 36 and 37, mounted on thearms 38 and 39, which are pivofed at 40 and 41 in the framework. A t

theouter end of thearms 38 and 39 are the friction rolls 42 and 43,which, in the present instance, both engage with the earn 44, so

'shaped and timed as to move the rockin cams 3G and 37 intoand out oftheplane o the grippers on the c nate revolutions.

` The. second impression cylinder preferably does not deliver itsvs'heetto the transfer cylinder 7 but delivers it to suitable guides45'interposed between the .said impression and transfer cylinders, so'that the sheet may be carried on to be'deliveredwith its printed4 sideup. From theftransfer or collecting vlinder during alterinder 7 thesheet may be delivered in any4 suitable way, as by means of a dropdelivery or' otherwise. The said-second impression cylinder .isprovided- With spring-seated grippers46 of the usual and ordinaryconstruction, having a crank with friction i'oll 47 adapted to'comeinContact with a suit-- able cani for opening the said gri pers.v inasmuchas the delivery point of this cylinder is but a short distance away fromthe receiving point'or from the' axial line between the transfer.cylinder 6 and theiinpression cylinder 4, only one cam is necessary inthisl instance'to open the gripper mechanism both to yreceive andrelease' the,-

Sheet. This cam, which is designated by4 the numeral 48, is adapted toopen the gri 'per mechanism during the irst'revolutionl o thecylinder-to receive the sheet, and again .to

open the gripper mechanism during its 'secg' ond revolution, to deliverthe sheet, the'saidYY l 115.

cani being moved into d-i'erent positionsy 'to effect this operation."Preferably 'this cam vis caused to oscillate around the shaft of thecylinder'b'y being provided with the sleeve 49, which, at' its outerend, is providedwith the gear segment 50 adapted to be operated by'ajnysuitable means to shift the caniback .J'andfcrtha certain distance or toproperly position the said cani Awith reference to the `receiving or thedelivery point, as the case 'may be.

51- is arotating camwhichimpartsproper motion 'to the gear-seetorv52,ivoted at- '53,

ra'o' and provided with an arm '54 aving a fr'e. I'

y pab -3.0 pression at predetermined intervals.

i .trip the impression is (mly about one-eighth of an inch, so that thegears on theres tive y '15 cylinders need not be out of mesh wit eacher'. other. This tripping of the impression cyli' inders 'does notaffect their relation to the transfer" cylinder 6 to any appreciable exitent and the sheet 'is therefore always ca-y le of beingpassed from thefirst. to the.v

' second impression cylinder whether lor not the impression is ti1pped.,Thev said eccentric bushings 57 are connected by 'means of thelshortarms 58, connecting rods 59, and

it laver. 60 to the rockshaft 61, therebeing 1n the present instance onerockshaftfor both cylinders. Suitable means are provided for rockingthis rockshaft 4at regular intervals so .as to automatically trip anduntrip the im` In the vpresent instance, the impression is tripped uringthe vsecond revolution of eachcyc e of the machine; Obviously, the meansfor accom lishngfthis may be varied widely, but

pre erably :thereis mounted upon the cam shaft 15 a cam 63 which isgiven one'revolution to a `number of revo utions (in the presentinstance to eve two revolutions) of the .machineg Mounte loosely on'the' stud .40 .65 is an arm 66 provided with a roller 67v adapted toenga ein the cam groove ofthefiom-6 3. -Suitab e means are 'rovided' for'Zoinmunicating the motion of t e arm 66 to the rockshaft, 61. In thepresent instance, 4:5these means' take the form of slotted con'-V'fnection 68 connected, vby'nf'leans'of thelever 59H0 the rockshaftaforesaid, and receiving 'the motion of the arm aforesaid by means 'M-the pin 70 carried at the lower end of the .5o said arm and `adapted tolay in the slot-71 4ofthe connect-ion aforesai ,and to be locked y -withI the said connection when the pin 70 is in the 'recess 7 2 of the saidslot...`

,'Interrupting means' are p'rovidd'for,lift-:r

.the slotted'connection s as/to cause the to play vidly in the slot. 71,whereby yform -nnd impressionfgmembers will be- "maintained separated ortripped as long as- I'the slotted connection is 'held in its elevated5:60 position. In other words, an. interrupting 4means is provided forthe'automatic tripping and untripping means. This interrupting meanswill ireferably take the',`

the`| pin .T6 extending in under the slotted connectionso that when thesaid` ro'cking cam 74 is moved into the plane of'the'cam l or pin77'conven1entlv mounted on tl'e cam play idly in the slot 7'1. The .saiinterrupt- .mg means may of course be operated from anysuitableactuating device undefl the iniiuence of an automatic feeder, or, as 1nthe vpresent instance, .under the control of the I have here shown aconventlonal operator. treadle '79 which, when it is depressed, will,through suitable connections, move the member 801soyas to cause'thelatter, by means of ,its bifurcated end v81 to move the rocking andsliding cam74 into the planeof the pin 77. This may of course beeffected by various mechanical contrivances, but, in the presentinstance, there' is shown a rockshaft ,I

8'2 suitably connected to the foot treadle by means of the Arod-8 5 andlever 86. Mounted. on the second impression vcylinder, are suitablethrow-off fingers 87 'havin a cranktarrying the roll 88 in the .nsua i Ymanner. Mounted on vthe stud 89 is a throw- -oil .cam `iENlwhieh isadapted to be positioned so as to be mthe-plane of the roll 88 duringthe secondwwlution of the second impression cylin" er',and to be out ofthe plane of' the said roll 88 during the first revolution of the saidcylinder.4 This throw-Nicam is operated synchronously with the tri pingand untrippmg of the impression, an is therefore conveniently operatedfrom the rockshaft .61 by any suitable means such as the ,bell crank91'connected Ato the arm 92 of the lthrow-oli' 'cam 'by means of the rod93, and

'connected to the rockshaft 61. by means of the arm94 andlever 95. -Theguides 'are mounted on the pivot 96 and are positioned s'nchronously or*simultaneously with the t row-olf cam to receive the sheet, and. are

which vis adapted to rest 'on the surface of the cylinder. A A

' 101 is a stop for preventing the position- ,ing of the cam 48 torelease the sheet when the impression remains trip ed. This stop 1 01 is'pivoted'at-102 and is-a so conveniently voperated from the rockshaft 61by' means of t e bent projection-\103 connec'ted to the lever 69 andconnected at its other end tothe Alower end of the stop 101. f suitablemeans I-or projection 104 is provi A ed onthe sleeve '-49 .which isadapted to abut against .the said i. lowin form: A roc ing cam 74isqmonnted fue slidab y ooit-he shaft 75 and, is1provided'withf ,3

.101 undercerta-in conditions..

ris 'rpmthe feedlhrd-B 1m therefore conveniently operated from the.

1l-5 arm 99 provided with a. friction roll 100.

a ainst the gages 9, which are raised so as to a low the said sheet to'be seized by the' griprs 16 on vthe `first im ression cylinder. hesheet is then carriedJ around and receives an impression between thecylinders 2 and 3 and is carried around a second time until the axialline between the cylinders 2 and is reached when it is transferred 'tothe transfer c linder which carries it until the axial line lietween thecylinders G and 4 is reached when thev cam 48 will be in the positionshown in Fi 3 so as to allow the 4grippers on the sai second impressioncylso vthat the sheet will be -carried past them inder to seize thesheet.

will be in the position also shown in Fig. 3,

and will receive an im ression between the cylinders 4 and 5. -At t istime also 'the stop 101 will be in the plane of the projection 104. Thesheet will then b e carried around past the. axial line betw en thecylinders *6 and 4,' when the cam 4 will have moved y into the positionshown in Figl, the throwoil cam 90 and guides 45 will be properlysitioned so as to cause the sheet to be reeased/rom the c linde'r 4, anddeposited on the guides 45. moved out lof the plane of the projection104, as shown.

lIt will be clear thatduring the normal operation of the machine, theautomatic means previously described will trip and untrip theimpression, the timing of the partsl bein such that the impression willbe untrippe after the sheet has been taken on by the iinpressioncylinders and carried a certain dis# tance over the same, which is wellillustrated by the second impression cylinder where the gri pers andthrow-off nger must be car- 'rie pastthe throw-off cam beforethecylinders are `movedinto contact. The cylinders are then moved intoprinting contact so as to allow the sheet to be properly printed duringthe first revolution and-simultaneously therewith the connections fromthe rock shaft 61 will operate toposition the 'inder' an throw-off cam90 and the guides 45 whilethe cam 48will be moved into the positionshown in 1 and the top 101 moved out` of the plangof the projection104,4 The iin-pres,- sion is then `tripped again, and the elements movedinto the position shown in Fig. -3 be'- fore. the Inext sheet is;-received. All this of course will operate synchronously or in h'armonywith t e tripping and untripping of the impression, and both impression-cylinders will beuntripped andltripped simultairieously.` AssiiminlnowA that one sheet has been tinted by t e first impression c ld) hasvbeen taken by the trans er 'cylinder 6 and is about to be taken by thecylinder 4, the parts bein in the .position shownin Fig. 3, and a' s eetis'missed in feeding, the operator then will depress the At this time,how! ever, the guides 45 and the throw-oilcam 90 he stop 101 will alsohavetreadle lbefore the priitin cylinders 'are moved into printingcontac thereby maintaining them in their separated position. Obviouslythen the partswill remain in the position shown in Fights.'` Theoperating means for the cam 48 will Lattempt to move it into theposition shownv inFig. 1, but the cam will be prevented from oscillatinowing to the fact that the stop-101 will in the path of the projection104 and ythe parts will therefore assume the position shownin l Fig. 4,whereby the sheet which has been ceived from the .transfer cylinder willbecarried around on the second imcpression cyl-, Inder Without beingprinted, an

properly positioned so as 'totlreleasewthe sheet and deliver. it to theguides 45, thesheet will bev held on the said impressionpylinder' aslong as it. remains tripped. Ifit is fflesi'red y l as the cainsjf 48-and 90, as Well Vas the guides 45, are not I, to maintain the partstripped for; more than' onecycle, 4the operator can move the lokiiigmember into. enga ementV with fthe tieadle, and thus trip it oi.' anyperiod desired. Since, however, the cam 48fwill be in the plane of thegripperson the second impression cylinder at the oint where-they receivea sheet, the said) grippers will be opened once to every revolution, butthere being no sheet 'to receive, they will lclose again on the samesheet which is already on the cylinder and continue to carry the sainearound. In order to assist in holding tlie said sheet in the bite of thegrippers on the second impression cylinder, provide the rollers 111,which are ada ted to reston the margins of thesheet or e sewhere, vtoassist f in prope'lling the sheet at the time when the grippers areopened. These., -rollers .arev

mounted on the arm 112,1pivotedfat 113. i

If a sheet is'nowfed kproperly to therst impression cylinder and theinterrupting= means. released, 'the automatic means .for

tripping and untripping the cylinders will' regain control ofthemachine,fand the sheets on both the first and second impression-.WLinders will be printed during the slicesedingv revolution, the sheet lonthe first impression cylinder beinggthen delivered to vtheti-aiisfer cylindeiov and the sheet on the second-iin'-A pression cylinder-'beingplaced on thegnides f 45. Thus also when the machine is started,

it will .bepreferable to start itzwith the impression tripped and theinterrupting means eifective,'so that the first sheetv fed will carriedon to the second impression cylinder where it will be held until asecond sheet is fed tothe first impression cylinderwhenj the' impressionwill be untrippedf'an 'ther-'magi ching-allowed to run normally.- Inthjs'wn'yA -it will be .observed the sm'iitting of'f thewill'be''prevented'b tliepresence-of a s on `the said second' if 'theimpressie ist I matic.l actmgsimultaneously, to'. trip. and.. untripbothlcy inders, the would, be

l placed? onf the blanket of`the"second impres- .sion cylinder, and inthat way a .great many sheets would be spoiledbefore the ink wouldremoved again. l -W'henl the treadle is released, the counterweight 123will move the "and sliding'cam out of ,the plane of the in cnt the 4cam63. A at'lis claimed is: 1. Iii-a Vmulti-ievglution rintiiig machine,

"tlie'combination, with the orm and impression members of aprintingcoupleo gripvperszadapted to f'hold the sheet on the'im'pression member for more than one revolution, automatic means fortripping and untripping the impression at regular interpression memberfor more than one revoluvals' to properly print the sheet, means forinterrupting the action of ,the automatic means aforesaid whereby thmembers are maintained'in their trip ed position, -and means forinterrupting the normal operation of the grippers whereby-the sheet .isheld onfthe impression mem r as long as the members are maintained in.their tripped position.` Q` l 2. In a multi-revolution printingmachine,"`

tl'lecombinationl with the form ,and impress sion members of"aprinting-couple, of grippers adaptdt ho d the sheet on the iintion,lautomaticl meanstripping and untripping the impression regular intervalstov properly print th sheet,.means for interrupting the action off` theautomatic means aforesaid before the .sheet on the im# pression memberis print' whereby the members-are maintained in their trip ed position,and means for interrupting tlie normal o ration of the grippers, wherebythe I lsheet is held on the impression member without being printed vaslong as the members are maintained in their tripped position, I and isprinted :after the automatic means regain control of the'machine.

3. In a multi-revolutionprinting machine,

the combination with the form and im.

pression members of arintiiig couple, of

automatic means for tripping and in itrip-` ping the impression atregular intervals,

'ppers on the impression "member, means4 or opening the said' gri persvat a .certain point once to a number o revolutions of the impressionmember', means for interrupting the action of the automatic meansaforesaid, whereby the members of the couple are main- A tained in theirtripped position, and for pre- -.v enting the opening means foi' thegrippers from acting on the latter, thereby ho ding the sheet on theimpression member as long as the impression is tripped.

4. In a multi-revolution printing machine, the combination with the'formand impression members of a printing couple, of automatic means fortripping and untripping `as long as the impression stripped.v

the..impress.ion. at .regular intervals, grippers on the impressionmember, means foropeniI ing the said gri pers at la'certain p'oint once!'.o a number o revolutions ofthe impression member',. means for'positioning the '7o Y opcningnieans at intervals correspondingto 4.thetripping of the impression, meaiisfor interrupting the action of theautomatic means aforesaid, whereby the members are maintained in'theirtripped position, and means for preventing the positioning ofthe openinmeans adaptedl to act synchronously with t e operation of theinterrupting means. 5. In a printing machine, the combination with theform and impression members of a printing couple, of gri pe'rs on'theimpression member, nieans fidi` trippin the impression, means adapted tobe positioned-'to -trp the grippers, and. means .to prevent the properpositioning of such tripping means for preventing the grippers. fromreleasing the sheet as long as the impression remains tripped.

6. In a multi-revolution rinting machine,

the .combinationwith the orm and impression members l two adj acentpiintingcouples adapted to print'on the same side'of 'the' sheet,meansfor autmaticall trippingai'id' Iuntrilppin'g the impression o bothprinting couples once to each cycle of the machine,

means, Inormally inactive, but'j .mm 1i adapted),- Iyiien actuated, tointerrupt! the normaloperatioii of the automatic tripping and unt 'ppingmeans of both couples, grip,- pers on he impression members, and means lfor interrupting thenormal operation of the y grippers on the impressionmember of the secondi co the Vsecond impression member when the'operation. of'the automatic tripping and unt-ripping means is intermpte7 In 'a multi coup e, .imulti revolution .printingmachinmthe ombinationwith the -form and impression members of two adjacentl printingcouples,- of automatic means foi` tripping and untripping the impressionof the'several couples at regular Intervals, grippers ony the impression"member of the -rstprinting couple, means for opening the 'said grippersonce to a number' of revolutions to release the sheet, grippers on theimpression 'member of the second printing couple, means :fora` openingthe said` grippers once to a number of revolutions. to releasey thesheet, means for interrupting the action of theautomatic means actingsimultaneou'sly on the members of the several'couples to maintain themin their tripped osition,: and means acting synchronously t erewith, tointerrupt the normal action .of the'grippers ontheimpression memberofthe second couple, whereby the sheet is Vheld on the'im-g., pressionmember of the said second ycouple le, so that the sheet is held on v,

8. In a multi-couple, multirevolution printing machine, the combinationwith the and impression members of two adjacent printingicouples adaptedto print on the same side of the sheet, of automate means for tri pingand untripping the impression of ti: intervals, grippers onv theimpression member of the first printing couple, means for o ening thesaid grippers once to a number o? revolutions to release the sheet,grippers on the impression member"of the second printing couple, meansfor-o ening the said grippers onceto a number o revolutions to releasethe sheet, means for interrupting the action of the automatic meansacting simultaneously on the members of the several couples to maintainthem in their tripped position, and means acting synchronously therewithto interrupt the normal action ofthe grippers on the'impression memberofthe second couple, whereby the sheet is held on the impression memberof the said second couple as long as the impression is tripped.

9. In a mnlti-couple, multi-revolution printing machine, the`combination with the formv and impression members of two adjacent'printing couples, of automatic means for tripping and untripping'theimpression' of the 'several coiiplesat regularl intervals,

, rippers on the impression member of the 'rst printing couple,l meansfor opening the sid grippers once Ato a'number of revolutions t'oreleaseth'e sheet, gripper-s on the impression member' of the second'printing couple, means for .opening the said grippers once to a numberof revolutions to release the sheet, means for interrupting the actionof the automatic` means acting simultaneously on the members of thesevera-1 couples to vmaintain them in their tripped position,

e several couples at regular means acting synchronously therewith to'interrupt the normal action of the grippers on the impression member ofthe second couple, whereby the lsheet held on the 'impression member ofthe said second couple as long as the impressionfis tripped, and asingle actuating device for operating both interrupting means.' I A- 10.In a multi coupie, multi -revolution rinting machine, the combinationwlth the orm and impression members of two adjafA cent prntin couplesadapted to print on the samegsi eof the sheet, of automatic means fortripping and untripping the impression, of the several couples atregular lntervalsl, grippers on the impression me: l ber 'of the firstprinting couple.,'mea.ns for Openin the'said grippers once t'o a numberof revo ntions to release the. sheet, grippers on the impression memberof the second., printing couple, means for opening the said grippersonce to a number of revolutions to release the sheet, means forinterrupting the action of the automatic means acting simul taneouslyyon the members of the several couples to maintain them in their tripped'pos1t1on, means acting synchronously. therewith to interrupt the normalaction of the grippers onthe impression member of the second couple.whereby the sheet is held on thevimpression member of the said secondcon le as long asthe impression is tripped, an a single actuating devicefor operating both interrupting means.

Signed at New York city this 19. day of December 1905. f

WALTER -sGoTT Vitnesses: y'

ANNA N. VIssiiMANN, GEo. A. 'HGFFMAN.

